Spurr blue and white striped casual button-down shirt. 100% cotton, button-down, athletic fit. It's medium, but runs a bit smaller. As you can see it fits very snug on me. If you have a larger chest or neck, you won't be able to button top button. See model measurements below. Model: Height: 5'11" Chest: 42" Neck: 15 1/2" Bicep: 14 1/2" Weight: 175lbs